In TCCC, what assumes priority under high-risk situations?

In high-risk situations, the priority is to prevent additional casualties. This focus is crucial because in a combat or tactical environment, ensuring the safety of all personnel, both casualties and others present, is paramount. By addressing the risk of further injury or loss of life due to the ongoing threat, medical personnel and combatants can create a more secure environment in which to treat existing casualties.

Treating casualties is also vital, but if ongoing threats are not managed, there may be a risk of worsening the situation by exposing medical personnel or other teammates to further harm. Thus, while treating the injured is important, it is secondary to ensuring that the environment is safe to do so. Preventing additional casualties allows for a more effective response and ultimately better outcomes for those already injured.